In this guide
Describe how the ingredient will be usedSpecify the physical formatCompare on an equal basisDescribe how the ingredient will be used
Blocks, powder and granules present different handling requirements. Instead of selecting from appearance alone, tell the supplier how your team will portion, blend, dissolve or pack the ingredient. Ask for a representative sample for a trial in your own process.
Specify the physical format
For blocks and cubes, request dimensions, weight tolerance and packing arrangement. For powder and granules, ask how particle size is described and assessed. If free-flowing material is required, confirm the actual composition and handling behaviour rather than assuming it from the product name.
Compare on an equal basis
Compare sample results, net pack weight, moisture, agreed analytical profile, storage conditions and commercial terms together. Record the accepted format and sample reference in the order specification. A successful trial should relate to a documented product, not an unspecified generic grade.